The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 135mm f1.8 FE and the Sigma 70-200mm f2.8 Sports for their suitability to various photography scenarios:
Size and Weight Comparison The size of a lens is a crucial factor to consider when comparing two lenses. Sigma 70-200mm f2.8 Sports is the longer of the two lenses at 205mm. The Viltrox 135mm f1.8 FE with a length of 146mm, is 59mm shorter. On the other hand, the Viltrox 135mm f1.8 FE has a larger diameter of 93mm compared to the Sigma 70-200mm f2.8 Sports's 91mm diameter.
Below you can find a scaled side-by-side image of Viltrox 135mm f1.8 FE and Sigma 70-200mm f2.8 Sports to get a better idea of how their sizes compare in real life.
Comparison image of the Viltrox 135mm f1.8 FE and the Sigma 70-200mm f2.8 Sports Size and Weight The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Viltrox 135mm f1.8 FE weighs 1235g, which means it is 110g (8%) lighter than the Sigma 70-200mm f2.8 Sports which has a weight of 1345g.
Filter Threads
The Viltrox 135mm f1.8 FE has a filter size of 82mm whereas the Sigma 70-200mm f2.8 Sports has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Viltrox 135mm f1.8 FE:
And these are the 77mm filters that we recommend for the Sigma 70-200mm f2.8 Sports:
Lens Mounts
Both the Viltrox 135mm f1.8 FE and the Sigma 70-200mm f2.8 Sports has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Sigma 70-200mm f2.8 Sports is also available in Leica L mount.
Focal Range
Viltrox 135mm f1.8 FE is a prime lens with fixed focal lenght of 135mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
202.5mm .
On the other hand, the Sigma 70-200mm f2.8 Sports has a focal range of 70-200mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105 - 300mm .